Mechanical machines

The 3D printing PMMA/ZrO2 filaments with a diameter of 1.75±0.05 mm were fabricated by using a single-screw extruder at temperatures of four heating zones of 190, 200, 210, and 210°C. Testing samples were prepared from the extruded filaments by using a fusion deposition modeling 3D printer and a Haake MiniJet piston injection molding machine. Fourier transform infrared spectroscopy, mechanical properties, field emission scanning electron microscopy (FESEM), differential scanning calorimetry, and thermogravimetric analysis of the filaments were investigated.

9p dianmotminh02 03-05-2024 1 1   Download

The research subject is the process of economic and mathematical modelling of time series characterizing the bitcoin exchange rate volatility, based on the use of artificial neural networks. The purpose of the work is to search and scientifically substantiate the tools and mechanisms for developing prognostic estimates of the crypto currency market development. The paper considers the task of financial time series trend forecasting using the LSTM neural network for supply chain strategies.

5p longtimenosee09 08-04-2024 7 1   Download

This research is a practice led investigation of interactive computer artworks that incorporate physical and interactive aspects of pre-computer age mechanical devices.The research initially proceeds by looking at interactive productions, previously produced by John Lycette, in order to identify any relationship to mechanical devices or factors that have influenced this field of enquiry. It then documents a broad collection of the machines and mechanical objects in order to analyze them in terms of their: mechanics; visual and tactile form; and relationship with function.

58p runthenight05 01-03-2023 2 2   Download

One of the limitations of the BDI (Belief-Desire-Intention) model is the lack of any explicit mechanisms within the architecture to be able to learn. In particular, BDI agents do not possess the ability to adapt based on past experience. This is important in dynamic environments as they can change, causing previously successful methods for achieving goals to become inefficient or ineffective.

108p runthenight07 01-03-2023 9 3   Download

Continuing from part 1, part 2 of the textbook English for mechanical engineering presents the remaining content as follows: lasers, corrosion, plastic injection molding, welding technology, computer integrated manufacturing, special machining technologies, applying for a Job. We invite you to consult!

64p gaogao2708 21-04-2022 38 13   Download

(NB) Giáo trình Tiếng Anh chuyên ngành cung cấp cho người học các kiến thức: Material of mechanical equipments; measuring instruments; steel material and machine in fabrication; detail drawings (steel construction drawings); detail drawings (tank and vessel drawings);.... Mời các bạn cùng tham khảo!

96p agatha25 21-05-2021 40 5   Download

A gas metal arc welding robot was used to build a thin-walled component made of mild steel on a low-carbon substrate according to the AM principle. Thereafter, the specimens for observing microstructures and mechanical properties were extracted from the built thin-walled component. The microstructures of the specimen were observed by an optical microscope; the hardness was measured by a digital microhardness tester, and the tensile tests were carried out on a tensile test machine.

8p larachdumlanat127 02-01-2021 11 2   Download

In this paper, we propose a mechanism to optimize range of EV by integrating some of the best methods to estimate rotor position, efficient temperature control modules and machine learning algorithms that analyze the vehicle’s environment and driving pattern.

10p lucastanguyen 01-06-2020 19 1   Download

This paper illustrates an innovative manufacturing procedure for producing handcrafted interlocking stabilized compressed earth blocks (ISCEBs). A comparison of the mechanical properties of ISCEBs is conducted to assess the influence of varying components.

16p tohitohi 19-05-2020 15 2   Download

The dissertation aims to study to reduce torsional vibration for the shaft The machine is equipped with DVA (dynamic vibration absorber) oscillator, mass disk type - spring - viscous. To know more details of the content please refer to the thesis summary.

32p xacxuoc4321 11-07-2019 26 3   Download

To provide high shunt impendence with low power losses, an 81.25 MHz continuous wave (CW) radio frequency quadrupole (RFQ) accelerator has been designed and machined as parts of the Low Energy Accelerator Facility (LEAF). In this paper, the mechanical structure and the main processing technology of the RFQ cavities are described according to the physical and geometric parameters requirements of the RFQ. The fabrication of the RFQ has been completed and the test results agree well with the design requirements.

5p minhxaminhyeu3 12-06-2019 12 0   Download

When computer virus wide spreads in the world nowadays, anti-virus needs to improve their identifying methods to enhance the performance. In this paper, we introduce a new method to diagnose computer virus. First, we analyse the characteristics of viral data type to define virus classes through object-oriented methods. Second, we study the machine learnning mechanism for each virus class. Finally, we apply these learning forms to a data processing stage of a machine learning anti-virus expert system.

10p binhminhmuatrenngondoithonggio 09-06-2017 62 4   Download

To help you Specialized Mechanic machine more references in the process of learning and study. Invite you to consult the lecture content "Hyperform training: One step analysis". Each of your content and references for additional lectures will serve the needs of learning and research.

7p dinhchung08 04-11-2015 39 3   Download

Về dạng chuẩn Boyce-Cold của sơ đồ quan hệ. Vào khoảng những năm 1940, điều khiển học hiện đại bắt đầu với vai trò một ngành nghiên cứu kết hợp giữa các lĩnh vực hệ thống điều khiển, thần kinh học, lý thuyết mạng điện, và mô hình logic. Norbert Wiener đặt ra thuật ngữ "cybernetics" để chỉ đến ngành nghiên cứu các "cơ chế có mục đích" (teleological mechanisms) và thuật ngữ này được phổ biến bởi cuốn sách của ông với tựa đề Cybernetics, or control and communication in the animal and machine ("Điều khiển học, hay điều...

3p butmaucam 27-08-2013 115 5   Download

Chromatin is a highly dynamic structure that plays an essential role in regulating all nuclear processes that utilize the DNA template including DNA repair, replication, transcription and recombination. Thus, the mechanisms by which chromatin structures are assembled and modified are questions of broad interest. This minireview will focus on two groups of proteins: (a) histone chaperones and (b) ATPdependent chromatin remodeling machines, that co-operate to assemble DNA and histone proteins into chromatin....

7p research12 01-06-2013 30 3   Download

This paper first presents a theoretical interpretation of the translation process. It then analyzes existing machine-translation research strategies and points out that some of the generally accepted principles of these strategies are not optimal. Finally, an alternative strategy is proposed, based on the author's theoretical position and research results.

8p nghetay_1 06-04-2013 50 2   Download

A finite-state machine is described which will control the derivation of Italian verb forms, including proper stress placement, given an appropriate dictionary and set of grammatical rules.I. Introduction In many languages a word may be identified, on the syntactic level, by a single vocabulary element or lexeme and a single term from each of a set of closed grammatical categories.

0p nghetay_1 06-04-2013 40 2   Download

It is argued that a thesaurus, or semantic classification, may be required in the resolution of multiple meaning for machine translation and allied purposes. The problem of constructing a thesaurus is then considered; this involves a method for defining the meanings or uses of words, and a procedure for classifying them.

16p nghetay_1 06-04-2013 32 4   Download

Research on a non-statistical scheme for the insertion of English articles in machine-translated Russian is described. Ideal article insertion as a goal is challenged as unreasonable. Classification of English nouns, simple syntactic criteria, and multiple printout are the scheme's main features.

0p nghetay_1 06-04-2013 60 3   Download

A program for sentence-structure determination is part of a system for linguistic computations such as machine translation or automatic documentation. The program can be divided into routines for analysis of word order and for testing the grammatical connectability of pairs of sentence members.

20p nghetay_1 06-04-2013 64 1   Download