Editorial

This work addresses the gap regarding existing indoor location-awareness support solutions and their integration in real-world smart spaces composed of commodity mobile/fixed devices. The work describes experiences and lessons learnt in designing and implementing support for indoor location-based services within the framework of our research about smart space application platforms. The extensive usage of web technologies in our smart space application platform enables easy creation and mash-up of location based services in both ad hoc settings and interconnected environments. As for the indoor location sensing, the solution relies on a novel technique that is suitable for easy large-scale deployments on top of existing IEEE 802.11 wireless network infrastructures. The technique, which is based on received signal strength (RSS), is suitable for RSS measurements and location calculation to take place at the mobile terminal with minimum setup work. In addition, it does not require any proprietary hardware devices to be installed in the target environment. Experimental results, referring to different categories of mobile devices (commercial smartphones, PDAs and laptops), show that the technique performs quite well on commodity mobile devices in terms of power consumption and time required to calculate the indoor location.     

磷用量对烤烟烟叶发育和结构的影响

１９９２～１９９３年河南宝丰就磷用量对烤烟烟叶发育和叶片结构的影响进行了连续两年的观察研究，结果发现：在一定用量范围内，增施磷肥有促进叶肉细胞分裂，延迟胞间隙分化扩展，促进栅栏组织细胞伸长的作用。磷用量在５６．２５ｋｇ／ｈｍ２以内，增施磷肥既有提高定长叶的叶厚及棚栏组织厚度的作用，又有增加栅栏组织细胞密度，减小胞间隙面积（％）的作用，效果都很明显。磷用量５６．２５～３３７．５０ｋｇ／ｈｍ２，增施磷肥可明显提高定长叶的叶厚及栅栏组织厚度，但对棚栏组织细胞密度及胞间隙面积（％）的影响很小。磷用量超过３３７．５０ｋｇ／ｈｍ２，增施磷肥定长叶的叶厚、栅栏组织厚度及栅栏组织细胞密度降低，胞间隙面积（％）增加。定长叶栅栏组织厚度与叶厚的比值相当稳定，与磷用量的关系不大。     

局部仿紧空间

在仿紧基础上定义了三种局部仿紧性，给出了三者等价的充分条件，分别讨论了它们的一些性质．结果表明局部紧空间中某些好的性质在相应的局部仿紧空间中仍成立，将紧性进一步推广，使紧理论更加丰富．     

Incorporating the home into the restaurant kitchen: The case of Israeli female chefs

Abstract

This study looks at the ways in which Israeli female chefs interpret professional cookery and mobilize their position to form feminine restaurant spaces, in which they instill their professional agenda. Israeli female chefs, we argue, maintain that their gender grants them professional flexibility to construct cooking spaces where alternative working norms apply and certain privileges, such as a flexibility to establish cooking spaces that do not otherwise function in the realm of upscale dining. By perceiving their restaurants as an extension of the dwelling, they interpret their head chef position as that of a professional mentor and counselor. Moreover, they exercise their legitimacy via an ongoing dialog with their staff, based on respect, empathy and emotional support, all with the aim of turning them into better cooks. Their professional vision of cookery also translates into designing menus that reflect a homey feeling and enable creating a community of diners.     

Interrelation of the Swiss Colour Atlas (SCA-2541) and the Munsell Color Order System

The CIE tristimulus values of measured Swiss Colour Atlas samples were converted to Munsell notations using a colour notation conversion program. A selected subset of SCA-2541 sample points was chosen: the samples on the fully populated regularly spaced hues 6, 12, 18, 24, 30, 36, 42, 48, 54, and 60. The resulting Munsell notations were plotted onto Munsell Value-Chroma and Hue-Chroma planes and analysed for regularity of spacing and hue distribution around the achromatic axis. An earlier article has detailed the interrelation between the Natural Color System (NCS) and the Munsell Color Order System using similarly constructed charts. Comparison is made with the sample spacing of the NCS and SCA-2541 points when mapped into Munsell colour space, to determine similarities and differences between these two geometrically similar systems; both are double cones forming equilateral triangular constant hue planes. © 1997 John Wiley & Sons, Inc. Col Res Appl, 22, 111–120, 1997     

On the metric complexity of continuous-time systems

In this paper, metric complexities of certain classes of continuous-time systems are studied, using the time-domain sampling approach and the concepts of Kolmogorov, Gel'fand and sampling n-widths for certain classes of Sobolev space. A sampling theorem is obtained which extends Shannon's sampling theorem to systems with possibly non-band-limited spectra. The theorem demonstrates that continuous-time systems in certain Sobolev spaces can be approximately reconstructed causally from their sampled systems. The Kolmogorov, Gel'fand and sampling n-widths of various uncertainty sets in the Sobolev spaces are derived. The results show that the sampling approach is in fact asymptotically optimal, when the sampling interval is selected to minimize the loss of information in the sampling process, for the modelling of systems in such Sobolev spaces.     

近似仿紧空间

引进了近似仿紧空间的概念作为近似紧Ｔ２－空间和仿紧空间的共同推广，给出了刻划近似仿紧空间特征的命题，并讨论了它的一些性质．     

概率度量空间压缩映象序列的拟-Picard迭代收敛定理

本文对[3]中定义的Menger空间中压缩映象的拟—Picarc迭代序列,证明了若干新的收敛定理,这些定理简化,综合并旦推广了[2]中所有主要结果,同时也推广了[1]、[3]中相应的定理。