中国科学院机构知识库网格系统: 检索

Forty-year spatio-temporal dynamics of agricultural climate suitability in China reveal shifted major crop production areas 期刊论文 OAI收割
CATENA, 2023, 卷号: 226, 页码: 107073
作者: Pan, Yuxin; Yang, Ren; Qiu, Jianxiu; Wang, Jieyong; Wu, Jiapei

|

收藏 | 浏览/下载：28/0 | 提交时间：2024/01/04

Suitable planting area Agricultural production Climate change Emerging hot spot analysis China

Impacts of climate change and increasing carbon dioxide levels on yield changes of major crops in suitable planting areas in China by the 2050s 期刊论文 OAI收割
ECOLOGICAL INDICATORS, 2021, 卷号: 125, 页码: 11
作者: Zhang, Yajie; Niu, Haishan; Yu, Qiang

|

收藏 | 浏览/下载：33/0 | 提交时间：2021/06/10

Yield change Climate change Atmospheric CO2 concentration Suitable planting area China

The Range Contraction and Future Conservation of Green Peafowl (Pavo muticus) in China 期刊论文 OAI收割
SUSTAINABILITY, 2021, 卷号: 13, 期号: 21, 页码: -
作者: Yan, Mingxiao; Gu, Bojian; Zhang, Mingxia; Wang, Wei; Quan, Rui-Chang

|

收藏 | 浏览/下载：35/0 | 提交时间：2022/01/04

historical distribution distribution prediction suitable habitat conservation protected area camera trap

Including climate change to predict the global suitable area of an invasive pest: Bactrocera correcta (Diptera: Tephritidae) 期刊论文 OAI收割
GLOBAL ECOLOGY AND CONSERVATION, 2021, 卷号: 34, 期号: _, 页码: -
作者: Zhang, Yuan; Hughes, Alice C.; Zhao, Zihua; Li, Zhihong; Qin, Yujia

|

收藏 | 浏览/下载：28/0 | 提交时间：2022/04/25

Invasive pest Bactrocera correcta MaxEnt Suitable area Climate change

A metric based on saliency line feature extraction and connection for matching area selection 会议论文 OAI收割
Shenyang, China, August 28-30, 2019
作者: Hua HY(花海洋); Shi ZL(史泽林); Liu YP(刘云鹏)

|

收藏 | 浏览/下载：30/0 | 提交时间：2020/03/22

Vision navigation suitable matching area saliency line feature monogenic phase congruency convex shape descriptor

Edge direction dispersion and its application in automatic suitable-matching area selection 会议论文 OAI收割
2011 Chinese Control and Decision Conference, CCDC 2011, Mianyang, China, May 23-25, 2011
作者: Ding QH(丁庆海); Yu XR(余新荣); Luo HB(罗海波); Liu HM(刘红梅)

收藏 | 浏览/下载：28/0 | 提交时间：2012/06/06

imaging guidance scene matching local non-texture target tracking automatic suitable-matching area selection edge direction dispersion

An 8-channel, area-efficient, low-power audio sampling rate converter (EI CONFERENCE) 会议论文 OAI收割
9th International Conference on Electronic Measurement and Instruments, ICEMI 2009, August 16, 2009 - August 19, 2009, Beijing, China
作者: Liu Y.; Liu Y.; Liu Y.; Wang D.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

A novel 8-channle third area-efficient next a new Timing Division Multiplexer (TMD) scheme lowers clock working rate to minimum in order to save power a novel memory addressing scheme reduces 20% data memory at least. Experiments show proposed methods could not only saved hardware resources but also reduce power consumption low-power audio sampling rate converter is proposed in this paper so it is very suitable for consumer electronics. 2009 IEEE. conversion ratio is 2:1 and 4:1. Filter design and implementation are the key points for the converter. First excluded data and coefficients memories adopting multiplier-free Arithmetic Unit (AU) and rounding methods allows its realization in a cell area of only 0.038mm 2 in 0.18 m technology

A multi-channel, area-efficient, audio sampling rate interpolator (EI CONFERENCE) 会议论文 OAI收割
2009 8th IEEE International Conference on ASIC, ASICON 2009, October 20, 2009 - October 23, 2009, Changsha, China
作者: Wang D.

收藏 | 浏览/下载：34/0 | 提交时间：2013/03/25

The area and power consumption of sampled rate converter are governed largely by associated digital interpolationfilters. This paper presents a novel multi-channel area-efficient audio sampling rate interpolator whose conversion ratio is 1:2 and 1:4. Several architectural and implementation features reduces the complexity of the filter and allow its realization in a die area of 0.032mm2 in 0.18 m technology meanwhile timing multiplexer scheme reduces clock frequency to minimum. Experiments show proposed methods could not only saved hardware resources but also reduce power consumption so it is very suitable for consumer electronics. 2009 IEEE.

Design and implementation of high-speed digital CMOS camera driving control timing and data interface (EI CONFERENCE) 会议论文 OAI收割
Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control and Computer Simulation, October 13, 2006 - October 15, 2006, Beijing, China
作者: Wang Y.; Wang Y.; Wang Y.; Sun H.; Sun H.

收藏 | 浏览/下载：43/0 | 提交时间：2013/03/25

High-speed digital cameras are progressing rapidly with the development of CMOS image sensor in these few years. In order to develop a high-speed CMOS industrial digital camera the CMOS image sensor MI-MV13 is used. The sensor drive pulse and control timing based on Xilinx Virtex-II Pro FPGA is designed. A novel format of digital image transporting based on Camera Link data port is defined in this paper. It is implemented 1280 (H) 1024 (V) SXGA resolution digital image transported at a high frame rate of 300 fps (frames-per-second) with 5 Pixels 10 bit compatible Camera Link Medium Configuration. In addition these functions that adjustments of exposure beginning time integral time AOI (Area of Interest) output and so on are realized in a FPGA chip. All of the function modules are embedded in a SOPC (System on a Programmable Chip) and further functions can be easily added to the chip at the second time development. Experimental results show that the design of driving control timing and data interface in FPGA is suitable for high-frame rate low power intelligent and miniaturization digital video camera.

Fabrication of polysilicon thin film on glass with low-temperature UV-assisted crystallization (EI CONFERENCE) 会议论文 OAI收割
ICO20: Display Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Huang J. Y.; Ling Z. H.; Jing H.; Fu G. Z.; Zhao Y. H.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

The amorphous silicon (a-Si) film was crystallized on glass by a simple method employed ultraviolet at temperatures as low as 400C. The employ of ultraviolet enhanced the crystallization of amorphous silicon. This method is able to uniformly crystallized large-area amorphous silicon films. The polysilicon films crystallized by this way are suitable for the fabrication of thin film transistors on ordinary glass. Crystallization process is performed in a furnace. Amorphous silicon sample is placed on a hot plate and irradiated by a bank of ultraviolet lamps through a diffuser plate to improve the uniformity of light that irradiates the sample. Raman microscopy is used for analyzing the qualities of UV-assisted crystallized silicon films. By measuring the Raman spectra the effects of anneal temperature and process time on the crystallizing behavior crystallinity and grain size of the processed films were obtained. There has a threshold temperature for crystallization of amorphous silicon film in the presence of ultraviolet irradiation with certain intensity i.e. by ultraviolet irradiation with certain intensity only when the temperature is up to the threshold temperature the crystallization can be triggered. The threshold temperature is 400C when the intensity of ultraviolet irradiation is 1mW/cm2. Above threshold temperature the increase of anneal temperature increased the rate of crystallization. Crystallinity and grain size extracted from Raman spectra of samples increase with the extending of process time at certain temperature. Crystallization of amorphous silicon film with thickness of 50nm completed within 6 hours at 400C irradiated by ultraviolet with intensity of 2mW/cm2.