Reduction

The samples were synthesized in two steps containing the photochemical reduction and galvanic replacement reaction using silver nanodecahedra as a sacrificial template to obtain hollow silver-gold alloy nanoshells. The dimension of the hollow cavities can be controlled by varying the amount of HAuCl4. The prepared Ag/Au decahedra can be applied to the SERS analysis.

12p vimitsuki 30-03-2025 0 0   Download

Bài giảng "Máy học nâng cao: Dimension reduction and feature selection" cung cấp cho người đọc các nội dung: Introduction: dimensionality reduction and feature selection, dimensionality reduction, feature selection, homework. Mời các bạn cùng tham khảo nội dung chi tiết.

81p myhouse06 24-03-2025 1 1   Download

The study aimed to evaluate the current campus waste management practices and provide suitable suggestions. As a result, feasible and suitable alternatives that identify specific and locally relevant prospects for waste reduction, reuse, and recycling can emerge, constituting a significant stride towards environmentally sustainable and health-conscious educational institutions.

10p viling 11-10-2024 1 1   Download

Resting egg production of rotifers provides critical advantages in larviculture of most fish species due to the reduction in the costs of labour and algae production. The study was conducted to investigate the effects of temperature on population growth and resting egg production of a freshwater rotifer, Brachionus calyciflorus, collected in Northern Vietnam.

8p vibecca 01-10-2024 2 2   Download

This article presents the application of Building Management System (BMS) in electrical load management. The BMS system in this article structure includes DDC, IOT 2050 Siemens, sensors, inverters and loads. Implementing this system in buildings saves energy, reduces operating costs and reduces CO2 emissions.

11p viinuzuka 28-02-2025 4 1   Download

This study aims to analyze the impact of poverty reduction policies on livelihood assets (human capital) of ethnic minorities in Dong Van district, Ha Giang province, Vietnam. The research sample is from more than 400 survey questionnaires of ethnic minority households in Dong Van district, Ha Giang province.

9p vihyuga 20-02-2025 3 1   Download

In this study, we developed a continuous flow method to synthesize arylhydroxylamines by a novel nitroreductase from Geodermatophilus obscurus, which shows high activity and chemo-selectivity in converting nitroarenes to N-Arylhydroxylamines (>99%) under mild condition. This method therefore provides a novel avenue to synthesis N-hydroxylamine.

10p viyamanaka 06-02-2025 2 2   Download

The selection of suitable material for manufacturing wheel rim is essential to address the issue of weight reduction while ensuring the load-bearing capacity of the wheel rims during vehicle movement on the road. In this study, the research team designed a 3D model of the wheel rim using Solidworks software.

8p viyamanaka 06-02-2025 3 2   Download

This paper proposed a fuzzy distance and constructed a heuristic algorithm to find one reduction set of numerical decision tables which is called the reduct. The proposed method preserves information measurement of the conditional attribute set.

11p tuetuebinhan000 23-01-2025 2 2   Download

Clavicle fracture is one of the most common injuries of the shoulder girdle. Malunion with angulation or shortening following fractures could cause significant functional deficits of the shoulder. Many kinds of treatment, such as conservative treatments (figure-of-eight bandage, arm sling) or surgeries (fixation with an intramedullary nail, a Kirschner wire, or plates and screws), are described to have their pros and cons for clavicle fractures.

7p vinara 11-01-2025 2 1   Download

To evaluate the effect of the drugs in terms of ambulatory BP (ABPM) and clinical reductions, as well as analysing their effect on some variables such as BP morning surge, trough-peak ratio and smoothness index, which have been shown to be predictive of cardiovascular and cerebrovascular risk.

9p viuchiha 06-01-2025 2 1   Download

In this paper, we study the solvability analysis of arbitrarily high-order linear differential-algebraic equations (DAEs) with time-varying coefficients, using the algebraic-behavior approach. We propose a concept of strangeness-index and construct condensed forms for high-order linear DAEs.

14p vibenya 31-12-2024 5 2   Download

This paper aims to develop an effective method for reduction and decomposition on large matrices with low required computational resources and fast processing times. Our contribution is to design a PCA-SVD hybrid method that dividesthe feature extraction into two phases: PCA-based size reduction and SVD-based decomposition. In our method, PCA is first applied to a large matrix to extract its important components

5p vibenya 31-12-2024 3 2   Download

Metal forming to make large parts, take large reductions, use high strength materials, work to net shape (precision flashless closed die forging), and use cold forming to obtain certain physical properties all require high forming forces. These forces may be larger than the capacity of existing machinery.

33p vcuong222 13-05-2015 60 5   Download

Tại sao cần chuẩn bị dữ liệu?. Làm sạch dữ liệu ( data cleaning) . Chọn lọc dữ liệu (data selection) . Rút gọn dữ liệu ( data reduction) . Mã hoá dữ liệu3CÁC KIỂU DỮ LIỆUDữ liệu dạng thuộc tính giá trị (Attribute-value data) Các kiểu dữ liệu  số (numeric), phi số (categorical)  Tĩnh, động (thời gian) Các dạng dữ liệu khác.

30p abcdef_14 19-07-2011 426 43   Download

Early metabolic steps, including glycolysis and the activity of the pyruvate dehydrogenase complex, yield a two-carbon fragment called an acetyl group, which is linked to a large cofactor known as coenzyme A (or CoA). It is during the citric acid cycle that acetyl-CoA is oxidized to the waste product, carbon dioxide, along with the reduction of the cofactors NAD+ and ubiquinone

94p zingzing09 21-10-2012 61 9   Download

Concept of Shape-Selective ZSM-5 Dewaxing Catalyst. Cracking High-Pour Paraffins into Naphtha and Gas. Reduction Coking Propensity through Reactant-Shape Selectivity

44p ntchung8894 18-02-2014 67 8   Download

Balancing oxidation-reduction equations, oxidation-reduction reactions, voltaic cells, cell EMF, effect of concentration on cell EMF is the main content of the lecture "Chapter 20: Electrochemistry". Invite you to consult the detailed content lectures to capture details.

59p leminhuy 01-11-2015 42 4   Download

Digital Image Processing: Image Enhancement - Duong Anh Duc presents about Image Enhancement; Point Operations; Image Negative; Contrast Stretching; Compression of Dynamic Range; Image Averaging for noise reduction; Some Averaging Filters; Some Typical Histograms.

78p cocacola_08 21-11-2015 69 4   Download

Dithering, also called Halftoning or Color Reduction, is the process of rendering an image on a display device with fewer colors than are in the image. Digital Image Processing: Some Special Techniques Dithering presents about it.

56p cocacola_08 21-11-2015 43 3   Download