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Enhanced Mask R-CNN for herd segmentation

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International Journal of Agricultural and Biological Engineering 2021年第4期14卷 238-244页

作者： Rotimi-Williams Bello Ahmad Sufril Azlan Mohamed Abdullah Zawawi Talib School of Computer Sciences Universiti Sains Malaysia11800Pulau PinangMalaysia Department of Mathematics/Computer Sciences University of AfricaToru-OruaBayelsa StateNigeria

Livestock image segmentation is an important task in the field of vision and image *** utilizing the concentration of forage in the grazing area with shielding the surrounding farm plants and crops is necessary for making effective cattle ranch arrangements,there is a need for a segmentation method that can handle multiple objects ***,the indistinct boundaries and irregular shapes of cattle bodies discourage the application of the existing Mask Region-based Convolutional Neural Network(Mask R-CNN)which was primarily modeled for the segmentation of natural *** address this,an enhanced Mask R-CNN model was proposed for multiple objects instance segmentation to support indistinct boundaries and irregular shapes of cattle bodies for precision livestock *** contributions of this method are in multiple folds:1)optimal filter size smaller than a residual network for extracting smaller and composite features;2)region proposals for utilizing multiscale semantic features;3)Mask R-CNN’s fully connected layer integrated with sub-network for an enhanced *** experiment conducted on pre-processed datasets produced a mean average precision(mAP)of 0.93,which was higher than the results from the existing state-of-the-art models.

关键词： livestock farming image segmentation mask R-CNN herd enhancement

Analysis of a predator-prey model with herd behavior and disease in prey incorporating prey refuge

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International Journal of Biomathematics 2019年第1期12卷 133-171页

作者： Sangeeta Saha G.P.Samanta Department of Mathematics Indian Institute of Engineering Science and Technology Shibpur Howrah-711103India

In this work,we have introduced an eco-epidemiological model of an infected predator prey *** of prey refuge gives that a fraction of the infected prey is available to the predator for ***,to make the model more realistic to the environment,we have introduced strong Allee effect in the susceptible *** and positivity of the solution have been *** stability conditions of the equilibrium points have been found with the help of Routh-Hurwitz criterion and it has been observed that if a prey population is infected with a lethal disease,then both the prey(susceptible and infected)and predator cannot survive simultaneously in the system for any parametric *** disease transmission rate and the attack rate on the susceptible have an important role to control the system *** different values of these two key parameters,we have got only healthy or disease-free or predation-free or a fluctuating disease-free or even a fluctuating predator-free system with some certain parametric conditions.

关键词： Allee effect herd behavior infected prey refuge extinction bifurcations

Study on temperature response of the herd calorimeter cell

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Radiation Detection Technology and Methods 2023年第2期7卷 227-233页

作者： Yingying Dai Xingzhu Cui Xin Liu Yongwei Dong Hongwei Liang Zhenzhong Zhang Xiaochuan Xia Zhipeng Wei State Key Laboratory of High Power Semiconductor Lasers Changchun University of Science and TechnologyChangchun130022China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing100049China School of Microelectronics Dalian University of TechnologyDalian116024China

Purpose To derive the temperature response of the basic unit of the electromagnetic calorimeter of the high energy cosmic-radiation detection(herd)*** Tested a method to measure herd calorimeter cell(HCC)light yield using an ultraviolet Light-Emitting Diode with a wavelength of 300 nm,and established an experimental setup and tested the light yield of the HCC at different temperatures in a thermal *** and conclusions The result showed that the signal amplitudes variation of the HCC reached up to 10.2% with temperature ranging from 0 to 60℃,if we narrow the temperature range to 0-35℃,the variation was about 3.7% and it showed much better *** result provides a good instruction on the thermal control of the herd calorimeter(CALO)to improve its performance.

关键词： herd LYSO WLSF Optical output Temperature response

Silicon PIN array-based charge measurement detector for herd beam test

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Radiation Detection Technology and Methods 2024年第3期8卷 1480-1485页

作者： Ke Gong Rui Qiao Wenxi Peng Bin Lu Yaqing Liu Dongya Guo Ruosi Lu Xuan Liu Zhen Zhang Jiahe Zhang Tianwei Bao Yongwei Dong Institute of High Energy Physics CAS19B Yuquan RdShijingshan DistrictBeijing100049China University of Chinese Academy of Sciences No.1 Yanqihu East RdHuairou DistrictBeijing101408China North China University of Technology No.5 Jinyuanzhuang RoadShijingshan DistrictBeijing100144China

Purpose The high-energy cosmic radiation detection(herd)is a dedicated space cosmic ray detector,planned to be launched and installed on the China Space Station(CSS)around *** of the main goals of herd is to measure the composition and energy spectra of cosmic rays(CR)with energies as high as several PeV by using silicon charge detectors(SCD)(Altomare et *** The silicon charge detector of the high energy cosmic radiation detection facility,2023),plastic scintillator detectors(PSD)(Kyratzis et *** Proceedings of Sc.(ICRC2021),vol.651,2021),and 3D calorimeters(CALO)(Liu et *** J Instrum 18(09):09002,2023).To assess herd’s charge measurement capability during the beam test,a particle identification detector(PID)with a large dynamic range is *** A Si-PIN-based PID detector is conceptualized and *** is composed of four layers,each containing 30 Si-PIN *** four IDE1160 ASICs,the signals from the Si-PIN arrays are preamplified,shaped,peak-held,and serially read out by four IDE1160 ASICs.A DAQ system is created to digitize the analog signals from ASICs,organize the data package,and transfer it to the host *** and conclusion Before going to the beam test,the dynamic range,linearity,pedestal,and noise level of each channel in PID were studied at *** dynamic range is 0 to+5 pC,the linearity is better than 2%,and the RMSE(Root Mean Square Error)of the pedestal is about 1 *** preliminary beam test results show that PID is capable of detecting heavy ions from(Be)to(Ga),and the charge resolution is better than 0.3 charge units(c.u.).

关键词： Cosmic ray PID herd Charge measurement

Test system designed for WLSF pads of herd calorimeter cell

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Radiation Detection Technology and Methods 2024年第3期8卷 1366-1376页

作者： Wenjie Duan Xingzhu Cui Xin Liu Sen Guo Bing Lu Yongwei Dong Jilong Tang Zhipeng Wei Qun Hao State Key Laboratory of High Power Semiconductor Lasers Changchun University of Science and TechnologyChangchun130022China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing100049China Zhongshan Institute of Changchun University of Science and Technology Zhongshan528437China

Purpose In order to avoiding the potential radiation harm caused by X-ray tube to the crew,and meeting the testing requirements for WLSF pad of Calorimeter Cell in the High Energy cosmic-Radiation Detection facility(herd).Method Designed a testing system,which is composed by LED,LYSO crystal,and narrow bandpass *** stability of the testing system is validated by conducting long-term measurements of signal amplitudes using a PMT waveform sampling *** and conclusions The result showed that the deviation levels of the WLSF Pad’s light output test results are all less than 5%.The linear relationship between the results of testing system and the results obtained with the cosmic ray test has demonstrated the effectiveness of the testing system,which promises the further application in large-scale WLSF pads performance testing.

关键词： herd LYSO WLSF Optical output

Study of linearity of LYSO crystal for the high energy cosmic radiation detection(herd)facility

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Radiation Detection Technology and Methods 2017年第1期1卷 21-28页

作者： Zheng Quan Zhigang Wang Ming Xu Yongwei Dong Junjing Wang Guangpeng An Xin Liu Tianwei Bao Li Zhang RuijieWang Junguang Lv Bobing Wu Shuangnan Zhang Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsCASBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsCASBeijing 100049China

The high energy cosmic-radiation detection(herd)facility is a space mission designed for detecting cosmic ray(CR)electrons,γ-rays up to tens of TeV and CR nuclei from proton to iron up to several *** main instrument of herd is a 3-D imaging calorimeter(CALO)composed of nearly ten thousand lutetium yttrium orthosilicate(LYSO,with cerium doping)crystal cubes.A large dynamic range of single herd CALO Cell(HCC)is necessary to achieve herd’s PeV observation objectives,which means that the response of HCC should maintain a good linearity from minimum ionizing particle(MIP)calibration to PeV shower *** order to study the linearity ofHCC over such a large energy range,a beam test has been implemented at the E2 and E3 beam lines of *** intensity pulsed electron beam provided by E2 line is used for producing high energy density within HCC;π^(+)/proton provided by E3 line are used *** results showthat no saturation effect occurs and the linearity ofHCCis better than 10%from 30 MeV(1MIP)to 1.1×10^(3) TeV(energy density is 93 TeV/cm^(3)),which can meet the requirement mentioned above.

关键词： herd Calorimeter LYSO Linearity Beam test

Validating the Classification of Smallholder Dairy Farming Systems Based on herd Genetic Structure and Access to Breeding Services

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Agricultural Sciences 2017年第7期8卷 545-558页

作者： Solomon Gizaw Megersa Abera Melku Muluye Mohammed Aliy Kefyalew Alemayehu Azage Tegegne International Livestock Research Institute Addis Ababa Ethiopia EjereWoreda Livestock and Fisheries Resource Development Office Addis Alem Ethiopia West Gojam Livestock and Fisheries Resource Development Office Debre Marokos Ethiopia Jimma University College of Agriculture and Veterinary Medicine Jimma Ethiopia Bahir Dar University Bahir Dar Ethiopia

Smallholder dairy farming in Africa is classified into rural, peri-urban and urban systems. The major classification criterion is demographic. Dairy systems are extensively characterized, but not based on rigorous statistical analyses. We validated this classification based on herd genetic structure and identify determinants of within-system variations, taking Ethiopia as a case study. Discriminant function analysis correctly classified 38% - 50.6% of the 360 sampled farms into the three systems. Multinomial logistic regression analysis showed that rural and peri-urban farmers were 1.26 (P herd within systems. In conclusion, considering farms within systems as a uniform unit to target development interventions may not be appropriate and thus farm topologies and system specific determinants of farmers’ breeding strategies need to be considered to design and introduce appropriate breeding interventions.

关键词： Smallholder Dairy Farming Systems Crossbreeding herd Genetic Structure Breeding Services

Design and prototyping of the readout electronics for the transition radiation detector in the high energy cosmic radiation detection facility

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Nuclear Science and Techniques 2024年第4期35卷 189-199页

作者： Jie-Yu Zhu Yang-Zhou Su Hai-Bo Yang Fen-Hua Lu Yan Yang Xi-Wen Liu Ping Wei Shu-Cai Wan Hao-Qing Xie Xian-Qin Li Cong Dai Hui-Jun Hu Hong-Bang Liu Shu-Wen Tang Cheng-Xin Zhao Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China

The high energy cosmic-radiation detection(herd)facility is planned to launch in 2027 and scheduled to be installed on the China Space *** serves as a dark matter particle detector,a cosmic ray instrument,and an observatory for high-energy gamma rays.A transition radiation detector placed on one of its lateral sides serves dual purpose,(ⅰ)calibrating herd's electromagnetic calorimeter in the TeV energy range,and(ⅱ)serving as an independent detector for high-energy gamma *** this paper,the prototype readout electronics design of the transition radiation detector is demonstrated,which aims to accurately measure the charge of the anodes using the SAMPA application specific integrated circuit *** electronic performance of the prototype system is evaluated in terms of noise,linearity,and *** the presented design,each electronic channel can achieve a dynamic range of 0–100 fC,the RMS noise level not exceeding 0.15 fC,and the integral nonlinearity was<0.2%.To further verify the readout electronic performance,a joint test with the detector was carried out,and the results show that the prototype system can satisfy the requirements of the detector's scientific goals.

关键词： herd Dark matter particle detection TRD Readout electronics SAMPA Data acquisition Performance test

Success Stories in Asia’s Quest for Increasing Its Domestic Milk Production

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Journal of Food Science and Engineering 2018年第2期8卷 74-82页

作者： John Moran Geoff Walker Mohammad Abdus Salam Profitable Dairy Systems Kyabram 3620VictoriaAustralia Land O Lakes DhakaBangladesh Bangladesh Dairy Enhancement Program Bangladesh

Throughout the humid tropics of Asia,smallholder dairy(SHD)farmers have developed their production systems largely based on the“traditional way of doing things”.Tradition is a generic word used in this case to mean basing farm management decisions and practices on how their father,or friends or even next door neighbours do *** low levels of milk production and herd fertility,the high incidences of calf mortalities and poor animal health(such as lameness and mastitis)and the inferior quality of much of the milk sourced from these farms are clear indications that many of these traditional farm management practices are in urgent need of *** need not necessarily be the norm and this paper provides two good examples of how innovation can pay off in the humid tropics of *** clearly demonstrated that improving herd management,particularly feeding management,can dramatically increase cow performance with higher milk yields and herd fertility.

关键词： Dairy development milk yield herd fertility