Fluorescence Record Diagnostics of 3D Rough-Surface Landscapes With Nano-Scale Inhomogeneities

The paper proposes a new approach that enables the structure analysis and reconstruction of a rough surface where the height of inhomogeneities (from the depression to the upper point) varies within the spread about 20 nm. For the surface diagnostics, carbon nanoparticles are used, which serve as sensitive probes of the local surface height. A single nanoparticle can be positioned at a desirable point of the studied surface with the help of an optical tweezer employing the He-Ne laser radiation. Then the particle is illuminated by the strongly focused exciting beam of 405 nm wavelength, with the waist plane precisely fixed at a certain distance from the surface base plane. The particle’s luminescence response (in the yellow-green spectral range) strongly depends on the distance between the exciting beam waist and the particle, thus indicating the local height of the surface. After scanning the surface area and the consecutive interpolation, the surface “vertical” landscape can be reconstructed with a high accuracy: the numerical simulation shows that the RMS surface roughness is restored with an accuracy of 6.9% while the landscape itself is reconstructed with the mean error 7.7%.

Unpredictable Verticality: Paradigm of a Vertical City

<p>With the densification of urban cities, our urban concrete jungles are populated by self-supporting and monolithic building blocks such as high rises and skyscrapers, connected only by the ground plan that they sit on. Although the buildings of today’s cities are getting taller, the architecture of today’s cities is still being developed on a two-dimensional template, where ground is the base plane and tall buildings remain independent to one another. This has created a segregation between the claimed internal spaces of our built environment and the public domain of architecture within the vertical realm of our urban fabric. This thesis speculates what vertical architecture of the future could be like if we challenge the conventional perception of our claimed vertical space, proposing an alternative while exploring the idea of a three-dimensional urban fabric. The research also encapsulates exploration of future technologies that may aid in the feasibility of this type of vertical architecture. Utilizing a design-led research approach, design experiments were employed to explore different ideologies surrounding futuristic alternatives in approaching vertical architecture. The research explores the proposition through design experiments of three different scales, namely, an installation exploring connectivity through abstraction, a ‘mid-scale’ vertical residence and a vertical city at a public scale. This research was predominantly influenced by the theoretical works of Yona Friedman, Nat Chard, Lebbeus Woods and Cedric Price. Their works were analyzed and merged to generate a hybrid concept for an alternate utilization of vertical space.</p>

Unpredictable Verticality: Paradigm of a Vertical City

<p>With the densification of urban cities, our urban concrete jungles are populated by self-supporting and monolithic building blocks such as high rises and skyscrapers, connected only by the ground plan that they sit on. Although the buildings of today’s cities are getting taller, the architecture of today’s cities is still being developed on a two-dimensional template, where ground is the base plane and tall buildings remain independent to one another. This has created a segregation between the claimed internal spaces of our built environment and the public domain of architecture within the vertical realm of our urban fabric. This thesis speculates what vertical architecture of the future could be like if we challenge the conventional perception of our claimed vertical space, proposing an alternative while exploring the idea of a three-dimensional urban fabric. The research also encapsulates exploration of future technologies that may aid in the feasibility of this type of vertical architecture. Utilizing a design-led research approach, design experiments were employed to explore different ideologies surrounding futuristic alternatives in approaching vertical architecture. The research explores the proposition through design experiments of three different scales, namely, an installation exploring connectivity through abstraction, a ‘mid-scale’ vertical residence and a vertical city at a public scale. This research was predominantly influenced by the theoretical works of Yona Friedman, Nat Chard, Lebbeus Woods and Cedric Price. Their works were analyzed and merged to generate a hybrid concept for an alternate utilization of vertical space.</p>

Accurate Volume Calculation Driven by Delaunay Triangulation for Coal Measurement

Volume calculation from 3D point cloud is widely used in engineering and applications. The existing methods either have large errors or are time-consuming. This paper focuses on the coal measurement. Based on the triangular mesh generated from the point cloud, each triangle is projected downward to the base plane to form a voxel. We derive the calculation formula of voxel by an integral method, which is more efficient than the method of decomposing voxel into tetrahedrons and more accurate than slicing methods. Furthermore, this paper proposes a Delaunay triangulation-driven volume calculation (DTVC) method. DTVC does not preserve the Delaunay triangles but directly calculates the volume in the process of triangulation. It saves memory and running time. Experimental results show that DTVC has achieved a good balance between error and efficiency.

Assessment of the duration of the pubertal growth spurt in patients with skeletal open bite

Purposes The objectives were to assess the skeletal age of patients with skeletal open bite and to estimate and compare the mean chronological age related to CS3 and CS4 (cervical stage, CS) and the duration of the pubertal growth spurt (PGS). Methods Orthodontic records of 145 patients were analyzed in this retrospective cross-sectional study. The study group comprised 104 patients with skeletal open bite (angle between cranial base plane line [NS] and mandible base plane line [ML] > 39° according to Steiner), whereas the control group comprised 41 patients with normal anteroposterior and vertical measurements. Skeletal age was assessed using the 6‑stage CVM (cervical vertebral maturation) method according to Baccetti. Quantitative variables were characterized by means of the arithmetic mean and standard deviation. The PGS duration was calculated as the difference between the means of the chronological ages related to CS3 and CS4. Results In the study group, the arithmetic means related to CS3 and CS4 were 11.12 and 13.54 years, respectively; the duration of the PGS was 2.42 years. In the control group, the arithmetic means related to CS3 and CS4 were 10.71 and 11.82 years, respectively; the duration of the PGS was 1.11 years. Conclusions In patients with skeletal open bite, the duration of PGS is longer but it occurs at a similar chronological age compared to patients with normal anteroposterior and vertical measurements. The PGS in males begins later than in females. Knowledge on the longer growth spurt in patients with skeletal open bite compared to patients with normal anteroposterior and vertical relationships can be useful in the selection of an appropriate therapeutic method and also provides information about the possibility of a longer and thus more effective orthopedic approach directed at positive change in the vertical growth pattern during intense bone remodeling.

Road Surface Reconstruction by Stereo Vision

This paper covers the problem of road surface reconstruction by stereo vision with cameras placed behind the windshield of a moving vehicle. An algorithm was developed that employs a plane-sweep approach and uses semi-global matching for optimization. Different similarity measures were evaluated for the task of matching pixels, namely mutual information, background subtraction by bilateral filtering, and Census. The chosen sweeping direction is the plane normal of the mean road surface. Since the cameras’ position in relation to the base plane is continuously changing due to the suspension of the vehicle, the search for the base plane was integrated into the stereo algorithm. Experiments were conducted for different types of pavement and different lighting conditions. Results are presented for the target application of road surface reconstruction, and they show high correspondence to laser scan reference measurements. The method handles motion blur well, and elevation maps are reconstructed on a millimeter-scale, while images are captured at driving speed.

Basal Plane Bending of Homoepitaxial MPCVD Single-Crystal Diamond

We report herein high-resolution X-ray diffraction measurements of basal plane bending of homoepitaxial single-crystal diamond (SCD). We define SCD (100) as the base plane. The results revealed that growth parameters such as temperature, growth time, and basal plane bending of the substrate all affect the basal plane bending of SCD. First, the basal plane bending of SCD depends mainly on the substrate and becomes severe with increasing basal plane bending of the substrate. The SCD growth experiments show that the basal plane bending increases with elevated growth temperature and increased growth time. Finally, to understand the mechanism, we investigated the substrate-surface temperature distribution as a function of basal plane bending of SCD fabricated by chemical vapor deposition (CVD). This allowed us to propose a model and understand the origin of basal plane bending. The results indicate that an uneven temperature distribution on the substrate surface is the main cause of the base-plane bending of CVD diamond.

The Valuation of Thinning Efectivity Based on Increment Respond of Natural Forest Log Over Area

Efforts to increase the natural forest productivity was conducted using several ways one of which is through thinning but the effectiveness is not well known yet. The research aims to evaluate the effectiveness of the application of thinning techniques to logged-over natural forests based on the response of the stand increment. The study design was an 11-year-old logged-over natural forest stand that was carried out systematic thinning, thinning based on built trees and without treatment with a total area of 24 ha. Data collection is done by census inventory of trees with limit diameter of 10 cm per 2 years periodically. Stand conditions in the research plot varied in value range of density (419-510 stems ha-1) and the base plane (22.66-28.20 m2.ha-1) which were not too wide. The results of the calculation of the base plan of the stand shows that systematic thinning yields a larger stand increment (0.78-1.95 m2.ha-1.2th-1) compared to thinning based on built trees and without treatment. Thinning gives more responsive results for the Dipterocarp species group (the increment value is almost twice to normal) compared to non Dipterocarp. Based on the regression analysis, function of time period has correlation between 25-33% to the basal area increment. A systematic thinning technique approach that is more appropriate for increasing stand productivity.

Structures of 1:1 and 2:1 complexes of BMVC and MYC promoter G-quadruplex reveal a mechanism of ligand conformation adjustment for G4-recognition

BMVC is the first fluorescent probe designed to detect G-quadruplexes (G4s) in vivo. The MYC oncogene promoter forms a G4 (MycG4) which acts as a transcription silencer. Here, we report the high-affinity and specific binding of BMVC to MycG4 with unusual slow-exchange rates on the NMR timescale. We also show that BMVC represses MYC in cancer cells. We determined the solution structures of the 1:1 and 2:1 BMVC–MycG4 complexes. BMVC first binds the 5′-end of MycG4 to form a 1:1 complex with a well-defined structure. At higher ratio, BMVC also binds the 3′-end to form a second complex. In both complexes, the crescent-shaped BMVC recruits a flanking DNA residue to form a BMVC-base plane stacking over the external G-tetrad. Remarkably, BMVC adjusts its conformation to a contracted form to match the G-tetrad for an optimal stacking interaction. This is the first structural example showing the importance of ligand conformational adjustment in G4 recognition. BMVC binds the more accessible 5′-end with higher affinity, whereas sequence specificity is present at the weaker-binding 3′-site. Our structures provide insights into specific recognition of MycG4 by BMVC and useful information for design of G4-targeted anticancer drugs and fluorescent probes.

BARISAN JUMLAH BILANGAN PADA BIDANG ALAS SETIAP TINGKAT HEPTAGONAL

ABSTRACTThe sequence of base plane on the heptagonal is the sum of elements on the base of each heptagonal pyramid level. In this paper will be constructed the form of the base sequence of each heptagonal by using a pattern of sequences formed on the base sequence tetrahedron, pyramid, pentagonal pyramid or hexagonal pyramid.Key words:Sequence of base plane, heptagonal pyramid.ABSTRAKBarisan bidang alas pada heptagonal adalah jumlah bilangan pada alas setiap tingkatpiramida heptagonal. Dalam tulisan ini akan dikonstruksi bentuk barisan alas daripiramida heptagonal dengan menggunakan pola barisan yang terbentuk pada barisanbidang alas tetrahedron, piramida, piramida pentagonal dan piramida hexagonal.Kata kunci:Barisan bidang alas, piramida heptagonal.