Water temperature and salinity tolerance of embryos and spat of the mussel, Musculista senhousia

Zhuo Liang Liang,김영훈,임상민,강경호,Zhi-Fang Zhang 한국패류학회 2009 The Korean Journal of Malacology Vol.25 No.3

The effects of water temperature and salinity on embryonic development and spat survival of mussel Musculista senhousia were investigated. Embryos were incubated in water ranging from 0 to 35℃ and with salinity from 5‰ to 40‰. Mussel spat were tested in water from 0 to 40℃ and with salinity from 0‰ to 100‰. The optimal conditions for mussel embryos were 20-25℃ and salinity from 25‰ to 35‰, based on Within this temperature range, higher temperatures correponded to a shorter duration of the embryonic period. Optimisation of mussel spat survival was at 25-35℃ and salinity from 30‰ to 40‰; both values are higher than those for embryo, which hinted M. senhousia embryos are more vulnerable than spat. Temperatures below 15℃ were lethal for embryos, making temperature a feasible method with which to control the large population of M. senhousia in ark-shell farm during its spawning period.

A lightweight and flexible CNT/Fe3O4 composite with high electromagnetic interference shielding performance

Zhuo Chao,Yingying Yu,Fang Lei,Dongmei Hu 한국탄소학회 2021 Carbon Letters Vol.31 No.1

Lightweight and flexible electromagnetic interference (EMI) shielding materials are in great demand for wearable EMI device. In the present work, lightweight and flexible carbon nanotube (CNT)/ferroferric oxide ( Fe3O4) composite film was made through a feasible chemical vapor deposition process for CNT film synthesis, followed by a hydrothermal reduction process for Fe3O4 coating. In the as-prepared composite, CNT film and Fe3O4 particles work as conductive skeleton and strong magnetic particle, respectively. The as-prepared composite film shows a novel EMI shielding effectiveness (SE) of 91 dB in the X-band, a small thickness of 0.09 mm and a low density of 0.86 g/cm3, which is superior to most of the carbonbased EMI materials.

Centralized Reactive Power Control for a Wind Farm under Impact of Communication Delay

Zhuo Chen,Zhenghang Hao,Shuijie Qin 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.2

How High School Mathematics Teachers Use New Textbook : A Case Study from China

( Zhuo Li ),( Jiansheng Bao ) 한국수학교육학회 2023 수학교육연구 Vol.26 No.4

In this paper, we propose a theoretical framework for Chinese high school mathematics teachers use new textbooks based on the work of Remillard (1999) and Chau (2014). Based on this framework, a multiple case approach was used to investigate how two high school mathematics teachers from Shanghai use new textbooks. The results suggest that in the curriculum mapping arena, both the novice teacher and the expert teacher often planned to appropriate the unit content, and sometimes planned to add supplemental content. When organizing the unit content, novice teacher always planned to follow the new textbook in sequence, while expert teacher often would follow the new textbook in sequence, but sometimes planned to rearrange the unit content. In the design arena, both the novice teacher and the expert teacher tended to appropriate the introduced tasks and definitions. The novice teacher often planned to appropriate the example problems and exercise problems, while the expert teacher often intended to flexibly use the example problems and exercise problems. In the construction arena, the novice teacher seldom adjusted the planned tasks; in contrast, the expert teacher adjusted the planned tasks more frequently. In the reflection arena, the novice teacher often thought she should improve the mathematics tasks, while the expert teacher almost always thought he needed to improve the mathematics tasks. The framework shown in this paper provides a tool to investigate how mathematics teachers use textbooks.

Size-dependent torsional deformation of silicon nanowires

Zhuo, Xiao Ru,Beom, Hyeon Gyu Elsevier 2018 Materials letters Vol.213 No.-

<P><B>Abstract</B></P> <P>The effect of size on the torsional deformation of [1 1 0]-oriented silicon nanowires is examined via molecular dynamics simulations. The plastic deformation mechanism of silicon nanowires depends on the nanowire diameter. Sub-5.7-nm-diameter silicon nanowires yield by means of a crystal-to-amorphous transition, which nucleates at the outer surface and propagates along the cross-section of the wires. On the other hand, perfect dislocations nucleate at the outer surface of wires whose diameter equals or exceeds 7.7 nm, initiating plastic deformation. These dislocations have a Burgers vector of 1/2 ⟨1 1 0⟩ and slip along the {1 1 1} planes. These findings may enhance our understanding of plasticity of silicon nanowires.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Torsional deformation of [1 1 0]-oriented silicon nanowires is size-dependent. </LI> <LI> Sub-5.7-nm-diameter silicon nanowires yield by a crystal-to-amorphous transition. </LI> <LI> Coaxial dislocations form in nanowires whose diameter equals or exceeds 7.7 nm. </LI> </UL> </P>

Size-dependent fracture properties of cracked silicon nanofilms

Zhuo, X.R.,Beom, H.G. Elsevier 2015 Materials science & engineering. properties, micro Vol.636 No.-

<P><B>Abstract</B></P> <P>We evaluate the applicability of the critical energy release rate as a crack propagation criterion with a focus on the effect of the material size. Cracked silicon nanofilms of various thicknesses under uniaxial tensile loading are simulated to examine the influence of film thickness on the critical energy release rate. Tensile stress–strain curves in addition to the atomic configurations corresponding to different strain levels are presented to elucidate the deformation mechanism. The cracked silicon nanofilms subjected to mode I loading deform nonlinearly to some extent. The critical energy release rates are calculated by three approaches: a molecular statics simulation, the Griffith criterion, and linear elastic fracture mechanics. Results obtained from these three methods are compared with each other and the differences between them are discussed. The critical energy release rate may be capable of predicting crack propagation when the silicon nanofilms are thicker than approximately 18nm.</P>

A Rapidly New-typed Detection of Norovirus Based on F0F1-ATPase Molecular Motor Biosensor

Zhuo Zhao,Jie Zhang,Mei-Ling Xu,Zhi-Peng Liu,Hua Wang,Ming Liu,Yan-Yan Yu,Li Sun,Hui Zhang,Hai-Yan Wu 한국생물공학회 2016 Biotechnology and Bioprocess Engineering Vol.21 No.1

In order to adapt port rapid detection of food borne norovirus, presently we developed a new typed detection method based on F0F1-ATPase molecular motor biosensor. A specific probe was encompassed the conservative region of norovirus and F0F1-ATPase within chromatophore was constructed as a molecular motor biosensor through the “ε-subunit antibody-streptomycinbiotin- probe” system. Norovirus was captured based on probe-RNA specific binding. Our results demonstrated that the Limit of Quantification (LOQ) is 0.005 ng/mL for NV RNA and also demonstrated that this method possesses specificity and none cross-reaction for food borne virus. What’s more, the experiment used this method could be accomplished in 1 h. We detected 10 samples by using this method and the results were consistent with RT-PCR results. Overall, based on F0F1-ATPase molecular motors biosensor system we firstly established a new typed detection method for norovirus detection and demonstrated that this method is sensitive and specific and can be used in the rapid detection for food borne virus.

Further-inspection for Doubly-Fed Converter: Theory, Method and Experimental Platform

Zhuo Chen,Zhengping Zhang,Zhenghang Hao,Shaohua Li,Ailing Zhang 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.6

Effects on Range of motion of Neck joint through Five-Animals Micro-Exercises

ZHUO YAN,XU Jiang,HE LI,ZHU WANLING 한국웰니스학회 2018 한국웰니스학회지 Vol.13 No.1

This research was aiming to provide new-styles sport exercises for white and blue-collar workers and prevented people from suffering occupational neck joint illnesses, released the pains from joints of neck and improving the ranges of motions of neck joints throughout the observations that was investigated among staffs who were from a research institute. This research carried out the suggested intervention called Five-Animals Micro-Exercises and then observe its effects that indexes which reflected the flexion, extension, lateral flexion, rotation and pain degree of joint neck would change. There were 320 staffs were chosen from all working staffs who employed by the institute as individual subjects. These 320 staffs did the Five-Animal Micro-Exercise and lasted for 20 weeks during the intervention period. In the progress of intervention, all subjects were divided into groups according to their working locations and organized to do the exercise which lasted for 10 to 15 minutes then exercise frequency was required at least 2 times a day and no more less than 5 days a week. Groups leaders would be elected among the groups and needed to record sport situations of group members. All group members could decide to join the grouped exercise or did the sport alone when they are convenient. The results of intervention would be collected when beginning and ending of this experiment, which is in order to determine the indexes flexion, extension, lateroflexion, rotation, pain degree of joint neck and body attitude assessment. Moreover, 177 subjects who showed higher compliance and reached the required standard of exercising were selected from weekly sport situations subjects’ feedback. The neck joint range of motion had significant changes after intervention, include flexion, extension, lateroflexion, and rotation(p<.05).Besides,, the pain degree and points of body attitude assessment of subjects stated dramatically variation (p<.05).The Five-Animal Micro-Exercise contributes on enlarging the degrees of flexion, extension, lateroflexion, rotation, and pain degree of joint neck are is helpful on improving joint neck degree. It can also relief joint pain, relax muscle, upraises endurance of muscles and increases the coordination of body, which are good for preventing cervical spondylopathy, and help people to maintain their body cures.

Analysis on Coexistence of Ultra Wideband with OFDM-Based Communication Systems

Zhuo Li,Weixia Zou,Bin Li,Zheng Zhou,Xiaojun Huang IEEE 2011 IEEE transactions on electromagnetic compatibility Vol.53 No.3

<P>Considering the potential interference of ultrawideband (UWB) on OFDM-based wireless communication systems, this paper studies coexistence issue between UWB with both impulse radio (IR) and multiband (MB) modulation and IEEE802.11n, WiMAX, and LTE downlink systems, using physical layer modeling strategy. According to the physical characteristics of UWB and the victim systems, entire physical layer models are set up. Based on the requirements of bit error rate (BER) and receiver sensitivity of the three victim systems, the emission limits of UWB are respectively obtained. Compared with a method based on interference to noise ratio (I/N) criteria, this method reflects the effect of the actual systems, so the conclusion can provide the reference to formulating the frequency spectrum of UWB within the operating frequency bands of the victim systems. Besides, we also reveal that IR-UWB should be more strictly regulated compared with MB-OFDM because of its time domain characteristic.</P>