中国科学院机构知识库网格系统: 检索

Stimulatory and inhibitory effects of light on Cereus repandus (Cactaceae) seed germination are strongly dependent on spectral quality 期刊论文 OAI收割
SEED SCIENCE RESEARCH, 2022, 页码: PII S0960258522000150
作者: Yang, X-Y; Pritchard, Hugh W.

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收藏 | 浏览/下载：11/0 | 提交时间：2024/04/30

dark-induced dormancy light dose neglected and underutilized species R-FR light reversibility seed traits FLUENCE-RESPONSE CURVES TEMPERATURE ECOLOGY TRAITS SOIL PENETRATION EMERGENCE VIVIPARY DESERT FAMILY

Spatiotemporal patterns and spatial risk factors for visceral leishmaniasis from 2007 to 2017 in Western and Central China: A modelling analysis 期刊论文 OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2021, 卷号: 764, 页码: 8
作者: Jiang, Dong; Ma, Tian; Hao, Mengmeng; Qian, Yushu; Chen, Shuai

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收藏 | 浏览/下载：48/0 | 提交时间：2021/04/25

Visceral leishmaniasis Neglected diseases Spatial risk factors Spatiotemporal patterns Public health

Spatiotemporal patterns and spatial risk factors for visceral leishmaniasis from 2007 to 2017 in Western and Central China: A modelling analysis 期刊论文 OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2021, 卷号: 764, 页码: 8
作者: Jiang, Dong; Ma, Tian; Hao, Mengmeng; Qian, Yushu; Chen, Shuai

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收藏 | 浏览/下载：23/0 | 提交时间：2021/04/25

Visceral leishmaniasis Neglected diseases Spatial risk factors Spatiotemporal patterns Public health

Neglected Urban Villages in Current Vector Surveillance System: Evidences in Guangzhou, China 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2020, 卷号: 17, 期号: 1, 页码: 15
作者: Wu, Sijia; Ren, Hongyan; Chen, Wenhui; Li, Tiegang

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收藏 | 浏览/下载：35/0 | 提交时间：2020/05/19

urban villages Ae. albopictus density Neglected macroscopic incubator vector surveillance system Guangzhou

Neglected Urban Villages in Current Vector Surveillance System: Evidences in Guangzhou, China 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2020, 卷号: 17, 期号: 1, 页码: 15
作者: Wu, Sijia; Ren, Hongyan; Chen, Wenhui; Li, Tiegang

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收藏 | 浏览/下载：13/0 | 提交时间：2020/05/19

urban villages Ae. albopictus density Neglected macroscopic incubator vector surveillance system Guangzhou

PID control of glucose concentration in subjects with type 1 diabetes based on a simplified model: An in silico trial (EI CONFERENCE) 会议论文 OAI收割
10th World Congress on Intelligent Control and Automation, WCICA 2012, July 6, 2012 - July 8, 2012, Beijing, China
作者: Yu L.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

An artificial pancreas system (APS) mimics the function of a real pancreas through monitoring a diabetic's blood glucose and administering the right dose of insulin via an automatic control loop. It is hailed as a promising cure of diabetes though this technology is still years away from commercial use due to a few technological bottlenecks. The simulation model of insulin-glucose metabolism of type 1 diabetes mellitus (T1DM) is an essential part of APS. In order to simplify the parameter identification task so that the model can be implemented electronically with ease this paper presents a simplified model based on Routh approximation model reduction method. The results show that the approximation error between the simplified model and the original model is so small that can be neglected. Based on the simplified model a PID controller is designed to maintain normoglycemia (90mg/dl) in subjects with T1DM. The in silico simulation results show that the glucose concentration is controlled well the risk of hyperglycemia and hypoglycemia is reduced a lot. This suggests that the simplified model describes the insulin-glucose metabolism process accurately and the PID control algorithm is well-suitable to guide the further development of an APS. 2012 IEEE.

Real-time adjusting of yaw angle of space camera based on General Image-Quality Equation (EI CONFERENCE) 会议论文 OAI收割
2009 2nd International Conference on Intelligent Computing Technology and Automation, ICICTA 2009, October 10, 2009 - October 11, 2009, Changsha, Hunan, China
作者: Wang J.; He X.; Xu S.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

A Strategy of Real-Time Adjusting of Yaw Angle (SRTAYA) of space camera was proposed base on General Image-Quality Equation (GIQE). During space camera imaging yaw angle which is caused by rotation of the earth and the gesture changing of satellite impacts integral aspect of TDI (Time Delay and Integration) CCD (Charge Couple Device) so that the image quality degrades. For extending imaging time of space camera and enhancing image quality yaw angle must be adjusted. The descending value of GIQE reflects the degrading quantity of image quality. The SRTAYA calculated an acceptable augmenting value of yaw angle according with a specific value of GIQE which the degrading of image quality can't be neglected no longer. The example which actualized a practical orbit of satellite illuminated that the SRTAYA could limit the value of yaw angle less than 318.45". 2009 IEEE.

Study on resonance absorption raman scattering in i2 liquid-core optical fiber (EI CONFERENCE) 会议论文 OAI收割
Nonlinear Optics: Technologies and Applications, November 12, 2007 - November 13, 2007, Beijing, China
作者: Fang W.; Yi W.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

The Raman scattering of I2 liquid-core optical fiber under the condition of resonance absorption in liquid-core optical fiber is studied in this paper. Iodine is dissolved in transparent benzene to make solution of I2 in benzene and the absorption coefficients of the solution are measured at certain wavelengths. The absorption curve can be divided into non-resonance absorption region pre-resonance absorption region strict resonance absorption region and post-resonance absorption region respectively. Resonance absorption Raman scattering experiments are conducted by a 532 nm frequency-doubled Nd:YVO4 laser and the wavelength is in the strict resonance absorption region of solution of I2 in benzene. Compared with I2 the absorption of benzene can be neglected. Non-resonance Raman scattering of the solution is performed using a 632.8 nm He-Ne laser and no spectrum lines of I2 are found. The study demonstrates that there is one spectrum line of I2 in the Raman scattering spectrum in the I 2 liquid-core optical fiber but this line is not found in the spectrum of the non-resonance and resonance absorption Raman scattering of I2 solution in benzene using absorption cell. The experiments proved that I 2 Raman scattering is greatly enhanced by using both resonance absorption and liquid-core optical fiber.

High power 1064nm laser diode array and measuring chip temperature based on emitting spectra (EI CONFERENCE) 会议论文 OAI收割
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
作者: Wang X.; Wang L.; Wang L.; Wang L.; Wang Y.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

High power laser diode array with an emission wavelength of 1064nm is presented. The epitaxial structure is an InGaAs/GaAsP strained-compensated single-quantum well structure. The modules CW output power can reach to 56.5W at current of 80A. Because the heat capacity of st rather shorter pulse duration and lower duty cycle the average driving power in the laser chip is quite low so the heating effect cemiconductor laser is very small using pulse injection can reduce temperature rising significantly. Aould be neglected. The definite relation between lasing wavelength and chip temperature is developed. The temperature drift coefficient is 0. 45nm/K 2008 SPIE.

Scaling and analyzing the influence of fluid surface of fluid with nano-granular through speckle pattern experiment (EI CONFERENCE) 会议论文 OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者: Wang X.; Wang Y.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

An optical system with double beam interference system was designed to measure the movement of nano-particles in fluid with laser speckle technology. In order to investigate the influence of the scattering light generated from liquid surface on speckle patterns the liquid surface contour was dynamically detected by WYKO during nano-particle movement. The result demonstrates that the fluctuation of fluid surface is slight. Meanwhile in order to further analyze this effect a piece of ground glass was employed. The process of ground glass to be polished to optical glass was studied and tested continuously using WYKO and laser speckle technology. And then the speckle patterns generated from kerosene fluid surface were studied. By contrast the results show that the fluid surface is transparent to the measurement wavelength. The influence of the surface of fluid can be neglected. Furthermore the conclusion illustrates that laser speckle technique is an effective and reliable method to study the movement of nano-granular in fluid.