水稻田间育秧简易手推播稻机

为了培育出既符合高性能水稻插秧机插秧要求的秧苗,又减少农民一次性投资大的难题,盐城市农业机械化研究所的工程技术人员经过多次研究和反复的试验比较,开发出了既符合农艺要求又适合农民购买力的Ｙ２ＢＤ—１３０型水稻田间育秧简易手推播稻机。

水稻轻型栽培方式及其应用前景

目前各地推行的轻型栽培方式很多,有抛秧(含无盘旱育苗抛秧)、机械插秧、水稻旱育秧手插、水稻旱育苗撒播、露白芽谷直播、套播加再生等等。由于熟制、自然地理条件、技术操作水平、应用的品种类型和传统习惯的不同,各地对各种轻型栽培方式的评价与推广力度也不尽相同。从总体上看,各种轻栽方式与手插栽培方式相比,在产量上也大体能和手插持平或略有增产,但由于各种轻栽方式具有各自不同的特点。

舞写生命的辉煌

整个春天在我眼前奔跑,哦不!是我奔跑着穿越了整个春天。春天的景致不可描绘,春天的斑澜不可形容,每一个亲手播种过春天的人,他们的内心世界都充满了激情。3月29日下午由张家口市委宣传部、市文联、市文化局。

期待

期待是美好的。 几乎所有人都在为期待而活着。儿童期待长大,青年期待成熟,中年期待收获,老年期待返童。因为期待才会在晨曦中迎接日出,才会滋生出许多思念。

山魂——记一位民办教师

看见他身后的大山, 读懂了他弯驼的背, 在贫瘠的土地上写下的 凝重的语言。

一个师范生的自白

不知从何时起清静的校园涌入了一股炽热的浪潮校园中来了许多小贩把同学们口袋里的零钱统统地收入自己的钱袋

Numerically Solving Quark-Loop Effects on Dressed Gluon Propagator in Chiral Limit

We do a numerical calculation on the quark-loop effects on the dressed gluon propagator in the chiral limit. It is found that the quark-loop effects on the dressed gluon propagator are significant in solving the quark propagator in the rainbow approximation of the Dyson-Schwinger equation. The approach we used here is quite general and can also be used to calculate both the chemical potential and current quark mass dependence of the dressed gluon propagator.

Cortical Arousal Strategies in Left-Handers during the Aural Perception and Manual Playback of Mono-and Polyphonic Rhythmical Patterns

The actual purpose of this study is to establish the cortical arousal strategies （according to the power of the EEG （electroencephalogram） a-oscillations） during the aural perception as well as manual playback of mono- and polyphonic rhythmical patterns in men with left profile. The study involved 35 men from 19 to 21 years old with the left profile of the manual and aural asymmetries. EEG was recorded in the functional status of rest： during the aural perception and playback of mono- and polyphonic rhythmical patterns with the left and right hand fingers. The monophony in the rhythmical pattern sounding relative to monophonic patterns is followed by more expressed and widespread cortical processes of the EEG a-oscillation depression. Given patterns indicate a greater intensity of ascending nonspecific arousal strategies of data processing by men on conditions of the sound and harmonious complications of the pattern structure. The aural perception and playback of rhythmical patterns with both hands were accompanied by the increased significance of arousal processes in the right hemisphere. This may be due to the dominant role of the hemisphere during the formation of the innervation impacts on the left-hander＇s neuro-motor apparatus. More differentiated changes in the cerebral cortex were installed during the left hand activation.

The Sensitivity of TE Filed Propagating in LHM-Antiferromagnetic Sensor

A three-layer waveguide structure sensor consists of LHMs （left-handed materials） film surrounded by dielectric cladding and antiferromagnetie substrate is proposed. LHMs known as MTMs （metamaterials） have simultaneous negative permeability and permittivity. The dispersion relation for the structure is derived for TE guided modes. Two ranges of frequencies are chosen such that Voigt permeability,μv, either negative or positive. The sensitivity is proven to be affected by different parameters including the film thickness, LHM parameters, and Voigt frequency.

A Barefoot Doctor’s Manual as a“Medical Bible”:Medical Politics and Knowledge Transmission in China

This paper examines the origin,compilation,and circulation of A Barefoot Doctor’s Manual(Chijiao yisheng shouce赤脚医生手册),exploring the relationship between medical politics and knowledge transmission in China,and its impact on the promotion of Chinese medicine across the world.Barefoot doctors were a special group of rural medical practitioners active in a very special socio-political context.Various editions of barefoot doctor manuals and textbooks were published across China after the first publication of the Manual in 1969.The publication of these manuals and textbooks became an indelible hallmark of the“Cultural Revolution”(1966–1976),when political publications predominated.The Manual was not only a guide for barefoot doctors in their daily study and practice,but also a primary source of medical knowledge for ordinary people.In the middle of the 1970s,the Manual was translated into many languages and published worldwide.This paper argues that the publication of A Barefoot Doctor’s Manual embodied a public-oriented mode of knowledge transmission that emerged and was adopted during a very specific era,and though it was eventually substituted by a mode of training embedded in the formal medical education system,it demonstrated the impact of politics on medicine and health in the context of resource scarcity and low literacy.Changes in China’s geopolitical status,the West’s pursuit of alternative approaches to medicine and health,and the World Health Organization’s(WHO’s)concern over health universality and equity all contributed to the translation and circulation of the Manual,facilitating the dissemination of Chinese medicine worldwide.The paper thus presents empirical and theoretical contributions to research on the relationship between medical politics and knowledge transmission in China.

Quark Loop Effects on Dressed Gluon Propagator in Framework of Global Color Symmetry Model

Based on the global color symmetry mode/ （GCM）, a method for obtaining the quark loop effects on the dressed gluon propagator in GCM is developed. In the chiral limit, it is found that the dressed gluon propagator containing the quark loop effects in the Nambu-Goldstone and Wigner phases are quite different. In solving the quark self-energy functions in the two different phases and subsequent study of bag constant one shouM use the above dressed gluon propagator as input. The above approach for obtaining the current quark mass effects on the dressed gluon propagator is quite general and can also be used to calculate the chemical potential dependence of the dressed gluon propagator.

手巧促心灵

儿童的智能在他们的手指尖上,许多科学家都证实,手和脑之间有着千丝万缕的关系。在人的大脑皮层上,有1/3部位专司手部运动。手的运动会刺激脑部其他机能的成长。手指的动作越复杂、越精巧、越熟练,就越能促进脑神经的发展,使幼儿变得手巧心灵。可以说,训练手就是训练了大脑。所以,从小应该鼓励孩子进行手的操作。