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   Science & Technology Review
2017, Vol.35, No. 10
28 May 2017

Scientifc Comments
Spescial Issues
Articles
Foreword
Columns
Scientific Community Promotion
Book Reviews
Perspectives
Scientists
News Around
News Focus
Careers
Special Issues
Suggestion
Voice of Scientific Community
Top News
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Columns

Hot!

Science & Technology Review. 2017, 35 (10): 0-0.
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Abstract ( 129 )
Foreword

Science & Technology Review. 2017, 35 (10): 1-1.
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Abstract ( 196 )
News Around

Science & Technology Review. 2017, 35 (10): 7-7.
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Abstract ( 173 )
News Focus

Science & Technology Review. 2017, 35 (10): 9-9.
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Abstract ( 136 )
Suggestion

Science & Technology Review. 2017, 35 (10): 11-12.
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Abstract ( 164 )
Spescial Issues

Current state and development of monitoring system safety and integrity for BeiDou Satellite Navigation System

ZHUANG Zhaowen, WANG Feixue, OU Gang, SUN Guangfu, LI Zhengrong
Science & Technology Review. 2017, 35 (10): 13-18. ;  doi: 10.3981/j.issn.1000-7857.2017.10.001
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Abstract ( 263 )
Along with the development of navigation modernization concept, the system safety and the integrity have become the key performances of the GNSS. This paper discusses the connotation and the composition of the system safety from the perspective of navigation warfare. Combined with the construction of the BeiDou system, this paper reviews the key breakthroughs and research achievements in the design of the signal system, the frequency planning and coordination, the construction of the anti-jamming architecture, the inter-satellite link and integrity monitoring. Finally, the future development of the satellite navigation system is discussed.

Development and clinical application of the orthopaedic surgical robot

HAN Xiaoguang, LIU Yajun, FAN Mingxing, TIAN Wei
Science & Technology Review. 2017, 35 (10): 19-25. ;  doi: 10.3981/j.issn.1000-7857.2017.10.002
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Abstract ( 310 )
The orthopedic surgical robot is the core intelligent equipment for the development of the precision, minimally invasive orthopedics surgery, and has become the a focus of international researches. This paper reviews the development of orthopedic surgical robots and the typical products of orthopedic robots. The Tianji Robot is discussed, as the first orthopaedic surgical robot completely developed and owned by China. This robot is also the first universal orthopaedic surgical robot based on the intraoperative real-time threedimension navigation, which could be used in spine, pelvic and limb surgeries by both open and minimally invasive approach. At last, the development trend of the orthopedic surgical robot is suggested and analyzed.
Special Issues

A burgeoning area in medicine:Remote cooperative diagnosis and treatment

ZHANG Danwei, LI Xi, JIANG Lixin
Science & Technology Review. 2017, 35 (10): 26-31. ;  doi: 10.3981/j.issn.1000-7857.2017.10.003
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Abstract ( 226 )
The remote cooperative diagnosis and treatment involves the use of information and communication technology and computer network to provide medical information or medical service from a distance. With its great advantages in optimizing medical resource allocation, reducing medical cost and improving medical service quality, it has become a burgeoning area of medicine, especially in China. This paper summarizes the basic concept and the history of remote cooperative diagnosis and treatment, focusing mainly on the present situation and existing problems in China, and the challenges and opportunities for the future development.

Research and prospects of hybrid rice with strong heterosis in China

DENG Huafeng, HE Qiang
Science & Technology Review. 2017, 35 (10): 32-37. ;  doi: 10.3981/j.issn.1000-7857.2017.10.004
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Abstract ( 248 )
In China, with the support of the national high technology research program, a series of important achievements have been made on hybrid rice with strong heterosis, the world record of rice yield in large area is created continuously, and the utilization of rice heterosis is in the international forefront. This paper summarizes the breeding and the application of hybrid rice with strong heterosis since the end of the 11th Five-Year Plan in China, including the theory and the technology of strong heterosis hybrid rice breeding, the discovery and the utilization of important functional genes, the breeding of parents and hybrid rice with strong heterosis, the commercial technology, the research and demonstration, and the application of hybrid rice with strong heterosis, and the research emphasis in next five years.

Nearly zero energy building research and development in China

XU Wei
Science & Technology Review. 2017, 35 (10): 38-43. ;  doi: 10.3981/j.issn.1000-7857.2017.10.005
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Abstract ( 326 )
Till 2016, the Ministry of Housing and Urban-Rural Development had already accomplished the goal of building energy efficiency proposed in the 1980s, to upgrade the building energy codes in three steps of raising energy efficiency by“30-50-65”with the state in the 1980s as the baseline. Recently, the goal of building nearly zero energy becomes the main solution of global warming and climate change. This paper reviews the latest international trend of nearly zero energy building and analyzes the special condition in China. The guideline and standards/codes and the best practice of nearly zero energy building are analyzed, together with the bottleneck of the key technologies. At last, the envisage of New Three Steps of building energy efficiency from 2016 to 2030 are proposed, which are“Low Energy Building, Ultra-low Energy Building and Nearly Zero Energy Building”.
Articles

Advance of magnetic induction hyperthermia for malignant tumor

ZHANG Limin, YU Xiaogang, JIA Kaiyun, WU Chengwei, ZHANG Wei, CHEN Zhen, SILVA Ravi
Science & Technology Review. 2017, 35 (10): 44-51. ;  doi: 10.3981/j.issn.1000-7857.2017.10.006
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Abstract ( 259 )
The magnetic induction hyperthermia for malignant tumor is a kind of new techniques where the heat is generated to kill the tumor lesion tissues through the magnetic media by the application of alternating magnetic fields. Since the development of the inductive heat treatment in the 1960s, many attempts were made to improve the effect of the heat treatment, to develop magnetic mediums with multimodality function and to optimize the temperature field distribution, for achieving numerous excellent results. This paper reviews the experimental studies and clinical applications of several magnetic materials, such as the ferromagnetic thermal seed, the magnetic liquid, the magnetic liposomes, the magnetic glass ceramic and the magnetic bone cement. In the meantime, the challenges in improving the efficiency of therapy and optimizing the heat field are also discussed.

Progress in pathogenesis and treatment of Alzheimer's disease

ZHANG Heao, QING Hong
Science & Technology Review. 2017, 35 (10): 52-63. ;  doi: 10.3981/j.issn.1000-7857.2017.10.007
Full text: HTML PDF  (710 KB)  ( 464 )
Abstract ( 342 )
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by two pathological hallmarks:β-amyloid plaques and neurofibrillary tangles. It is the most common type of dementia and a common disease of the elderly. The pathogenesis of AD is related to multiple risk factors, pathways and molecular mechanisms. Because AD is a disease that is currently widespread in the elderly, it is essential to figure out pharmaceutical strategy for AD in order for aged people to get healthy and quality life. There is no treatment method that can completely cure AD right now, but there are various treatment strategies. This article reviews briefly the past and recent important findings of pathogenesis and treatment strategies of AD.

Protective effect of dietary 5'-nucleotides on alcohol-induced kidney injury of mice

WANG Nan, CAI Xiaxia, BAO Lei, LIU Rui, REN Jinwei, XU Meihong, LI Yong
Science & Technology Review. 2017, 35 (10): 64-70. ;  doi: 10.3981/j.issn.1000-7857.2017.10.008
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Abstract ( 166 )
This paper investigates the protective effects of dietary 5'-nucleotides on alcohol-induced kidney injury of mice. A total of 35 specific pathogen free (SPF) male Wistar mice are randomly divided into 5 groups given alcohol, equivalent distilled water or an isocaloric amount of dextrose intragastrically for 8 weeks. The two groups of alcohol-induced rats are fed with AIN-93G rodent diets including 0.04% and 0.16% 5'-nucleotides, respectively. Body weight (bw), renal function indexes and serum concentration of ICAM-1 and PCM-1 are measured, and renal pathologic changes stained by hematoxylin and eosin stain are observed by election microscope. The result shows that dietary 5'-nucleotides can reduce the rise of urinary protein per 24 h and level of blood serum creatinine (SCr) induced by alcohol, as well as the blood urea nitrogen (BUN) in the 0.16% NTs group. And compared to the alcohol group, the endogenous creatinine clearance are decreased significantly in the 0.04% and 0.16% NTs groups. The renal lesions present glomerular mesangium proliferation, inflammatory cell infiltration in tubule-interstitial and vacuolation or swell of renal tubule epithelium in the alcohol group, which are less in both NTs groups. The serum concentrations of ICAM-1 and PCM-1 of NTs groups are also lower than those of the alcohol group. What's more, the expression changes of PCX-1, TGF-β and fibronectin (FN) in kidney induced by alcohol are repaired by NTs supplement. In conclusion, the dietary 5'-nucleotides can protect kidney from injury induced by alcohol in mice.

Solutions to treatment for out of specification of bacterial endotoxin test

PEI Yusheng, CAI Tong, ZHANG Guolai, GAO Hua
Science & Technology Review. 2017, 35 (10): 71-75. ;  doi: 10.3981/j.issn.1000-7857.2017.10.009
Full text: HTML PDF  (2511 KB)  ( 188 )
Abstract ( 215 )
A series of scientific methods are established to confirm the out of specification (OOS) result which is inevitable in daily detection for bacterial endotoxin test. According to the risk factor analysis and work experience, the causes of OOS results are analyzed and details of quality standard and calculation, experimental operation, materials, instruments, etc. are studied. Based on the characteristics of bacterial endotoxin test, a decision flow chart is designed to determine the validation scheme for OOS. All types of causes and solutions for risk factors are determined, and the risk factor fishbone diagram to review OOS and a decision-making flowchart to verify OOS results are established. This work makes the endotoxin test results more scientific and rigorous by using the fish bone diagram of risk factors to review and analyze the causes of OOS and by following the decision-making flow chart to confirm the result.

Smart city construction, big data and urban management

SHEN Zhenjiang
Science & Technology Review. 2017, 35 (10): 76-79. ;  doi: 10.3981/j.issn.1000-7857.2017.10.010
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Abstract ( 403 )
Smart city construction is a new project of renewing urban facilities based on the development of information communication technology (ICT). Because of using personal intelligent devices, clouding computing and big data in the process of smart city implementation, new life style will emerge and spread over urban and rural areas. Smart urban management ideas and practices will be new challenges to the goal of improving the quality of life, whose slogan is better city, better life. This paper introduces the concept of smart city, relevant institutional renovation and future tasks of urban planning in China.

Experiments on bridge vibration detection using Android smartphone sensors

LIU Zhiping, ZHU Dantong, YANG Lei, YANG Dingliang
Science & Technology Review. 2017, 35 (10): 80-86. ;  doi: 10.3981/j.issn.1000-7857.2017.10.011
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Abstract ( 213 )
In view of the fixed sampling rate setting, the problems of under sampling and over sampling in the default sampling mode of Android smartphone sensors are discussed in this paper, and a smartphone sensor signal acquisition software with a custom sampling rate and sampling precision is developed, which can synchronously record the data of the sampling epoch, the time interval and the sensor values. Then, both two power spectrum analysis methods and two displacement signal reconstruction methods of analog acceleration signals are compared and analyzed, and the results show that the L-S method and the frequency-domain integral method can effectively process the non-uniform sampling signal of smartphone sensors with noise. At the end, the acceleration signals of Xuzhou Han Bridge are collected from both smartphones (NX 5 and Mi 3) and a high precision inertial integrated navigation system (SPAN-IGM-A1) used for comparison experiments, and the bridge vibration detection and analysis results verify that the portable and low-cost Android smartphone can be used to conduct the bridge vibration detection.

An Evaluation of Watershed Ecological Constraints of Hydropower Development Based on GIS

DONG Zhaokai, WANG Dongsheng, SUI Xin
Science & Technology Review. 2017, 35 (10): 87-92. ;  doi: 10.3981/j.issn.1000-7857.2017.10.012
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Abstract ( 195 )
When using the GIS to construct a watershed ecological evaluation tool, it is of great significance to evaluate the watershed ecological constraints on the development of the hydropower, serving as a reference for the hydropower cascade development. The present paper summarizes the concept model of the ecological constraint assessment. It is shown that the basic indexes for the evaluation of the ecological constraints include three aspects, namely, the environmental status constraint, the species diversity constraint, and the environmental sensitive area constraint. With a process combined analytic hierarchy process (AHP) and the GIS, an integrated assessment method for the ecological constraints is proposed. Taking one basin in southwestern China as a sample case, it is shown that the method of the ecological evaluation of the hydropower development based on the GIS proposed in this paper can objectively reflect the spatial condition and the diversity of the ecological constraints on the hydropower development, which allows for a simple and easy operation, and can provide a scientific basis and support for the comprehensive hydropower cascade development in the study area.

Resource base of developing saline lake agriculture in Qaidam Basin

WANG Xianjie, KONG Fanjing, KONG Weigang, ZHENG Mianping
Science & Technology Review. 2017, 35 (10): 93-98. ;  doi: 10.3981/j.issn.1000-7857.2017.10.013
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Abstract ( 188 )
Based on the condition of the natural resources in the Qaidam Basin, such as the geography, the climate, the water resources and the halophytes, this paper comprehensively analyzes the resource basis for developing the saline lake agriculture, focusing on the characteristics of the land use and the problems of applications. It is shown that the priority of the Qaidam Basin is to deal with the salinized soil. With the accumulated temperature, the heat resource is rich. Furthermore, the salt water, the brackish water and the plant resources are also very rich in this area. The proportion of the agricultural land in the Qaidam Basin is 0.17%. A large part of the agricultural land is not developed and the abandoned area is large. The grassland area accounts for 46.64%, but with the altitude, the climate, the traffic and other conditions, its use is limited. The proportion of the forest is 2.87%, but with a serious damage. The saline land area accounts for 11.68%, which is rich in the Qaidam Basin, but it is hardly used. The resources in the Qaidam Basin is rich with a huge development potential. So it is suggested to establish an agricultural demonstration district in this area. to be used to develop the salt lake agriculture, as well as to strengthen the study of the halophytes, and rationally to develop and utilize the saline land resources.

Damage of double-spaced plates by reactive material fragment impact

XIAO Yanwen, XU Fengyue, YU Qingbo, ZHENG Yuanfeng, WANG Haifu
Science & Technology Review. 2017, 35 (10): 99-103. ;  doi: 10.3981/j.issn.1000-7857.2017.10.014
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Abstract ( 222 )
The ballistic impact experiments are conducted to investigate the damage of double-spaced aluminum plates impacted by the pressed and sintered PTFE/Al/W reactive material projectile. The experimental results show that a typical KE perforated hole on the front plate is produced by the reactive material projectile impact, whereas the dramatically structural damage with significant deflections and cracks is found in the rear plate, with larger ruptured holes and damage areas, as compared with the front plate. Moreover, the influences of the impact velocity and the plate thickness on the damage of the rear plate are analyzed by using the crack growth theory. The structural damage mechanisms of the rear plate are discussed.
Scientific Community Promotion

Science & Technology Review. 2017, 35 (10): 104-104.
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Abstract ( 140 )
Perspectives

Science & Technology Review. 2017, 35 (10): 105-105.
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Abstract ( 266 )
Scientists

Science & Technology Review. 2017, 35 (10): 106-106.
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Abstract ( 194 )
Careers

Science & Technology Review. 2017, 35 (10): 107-107.
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Abstract ( 133 )

Science & Technology Review. 2017, 35 (10): 107-107.
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Abstract ( 116 )
Book Reviews

Science & Technology Review. 2017, 35 (10): 108-108.
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Abstract ( 127 )
Top News

Science & Technology Review. 2017, 35 (10): 5-6.
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Abstract ( 168 )
Voice of Scientific Community

Science & Technology Review. 2017, 35 (10): 8-8.
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Abstract ( 135 )
Scientifc Comments

Science & Technology Review. 2017, 35 (10): 10-10.
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Abstract ( 128 )

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